import { StoreEvent, StoreEventCallback } from "./types";
export declare class Store<T = any> {
    private static instance;
    protected name: string;
    private db;
    private schema?;
    private isInitialized;
    private initPromise;
    private eventListeners;
    private readonly MAX_RETRIES;
    private readonly RETRY_DELAY;
    private constructor();
    static getInstance<T>(name: string, schema?: IDBObjectStoreParameters): Store<T>;
    setup(): Promise<void>;
    private ensureInitialized;
    private getStore;
    /**
     * Retries an operation if it fails due to database version changes in other tabs
     */
    private retryOperation;
    getItem(key: string): Promise<T | null>;
    getAllItems(): Promise<Record<string, T>>;
    addItem(key: string, value: T): Promise<IDBValidKey>;
    addOrUpdateItem(key: string, value: T): Promise<IDBValidKey>;
    updateItem(key: string, value: Partial<T>): Promise<IDBValidKey>;
    deleteItem(key: string): Promise<void>;
    /**
     * Emits an event to all registered listeners for a specific event type
     * @param event - The type of event to emit ('change' or 'error')
     * @param detail - The detail to emit with the event
     */
    emit(event: StoreEvent, detail: any): void;
    /**
     * Registers an event listener for the specified store event
     */
    on(event: StoreEvent, callback: StoreEventCallback): void;
    /**
     * Removes an event listener from the store
     */
    off(event: StoreEvent, callback: StoreEventCallback): void;
    /**
     * Clears all items from the store.
     */
    clear(): Promise<void>;
    /**
     * Destroys the store and deletes it from the database.
     */
    destroy(): Promise<void>;
}